Have had my G3 for about 18 months. The battery seems to have really died - although I don't know if I am a heavy user. There is no way it lasts a day now. It also seems to get very hot. If I look at the battery usage graph it seems to put half of it down to the screen. Was thinking of getting a replacement - although I got a replacement for my old Galaxy S3 and it didn't seem to help. Where is a good place to get a replacement? They seem to range from £5 to £25 - loads on ebay, some on Amazon, then there is this: Official LG G3 Standard Battery at MobileFun How do people go about sourcing replacement batteries? I don't want to replace it with one the same. I have an external battery for longer-term no-power days, but looking to give the phone a shot in the arm. Thanks!